[INFO] fetching crate serde-detach 0.0.1...
[INFO] checking serde-detach-0.0.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate serde-detach 0.0.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate serde-detach 0.0.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-detach 0.0.1
[INFO] finished tweaking crates.io crate serde-detach 0.0.1
[INFO] tweaked toml for crates.io crate serde-detach 0.0.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bb7f1b2fcad6ac9534551e48f6e4f95865afaa0cb13d3f02899ccea8418cb31
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1bb7f1b2fcad6ac9534551e48f6e4f95865afaa0cb13d3f02899ccea8418cb31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bb7f1b2fcad6ac9534551e48f6e4f95865afaa0cb13d3f02899ccea8418cb31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bb7f1b2fcad6ac9534551e48f6e4f95865afaa0cb13d3f02899ccea8418cb31", kill_on_drop: false }`
[INFO] [stdout] 1bb7f1b2fcad6ac9534551e48f6e4f95865afaa0cb13d3f02899ccea8418cb31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 199a42c7b1dabb4ee69fea127a77a663649d2a03cead5c5e3a7118592290f4c5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "199a42c7b1dabb4ee69fea127a77a663649d2a03cead5c5e3a7118592290f4c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]     Checking gnaw v0.0.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking cervine v0.0.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking enum_properties v0.2.1
[INFO] [stderr]     Checking debugless-unwrap v0.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking smartstring v0.2.6
[INFO] [stderr]     Checking lazy-transform-str v0.0.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling try_match_inner v0.2.0
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]     Checking try_match v0.2.2
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking taml v0.0.1
[INFO] [stderr]     Checking serde-object v0.0.0-alpha.0
[INFO] [stderr]     Checking serde_taml v0.0.1
[INFO] [stderr]     Checking serde-detach v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.25s
[INFO] running `Command { std: "docker" "inspect" "199a42c7b1dabb4ee69fea127a77a663649d2a03cead5c5e3a7118592290f4c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "199a42c7b1dabb4ee69fea127a77a663649d2a03cead5c5e3a7118592290f4c5", kill_on_drop: false }`
[INFO] [stdout] 199a42c7b1dabb4ee69fea127a77a663649d2a03cead5c5e3a7118592290f4c5